| Publication Type: | Journal Article |
| Year of Publication: | 1989 |
| Authors: | M. Gupta, Pawar A. D. |
| Journal: | Plant Protection Bulletin Faridabad |
| Volume: | 41 |
| Pagination: | 6-11 |
| Keywords: | agricultural entom, beneficial arthropods, biological control, biological control agents, cereals, control, entomogenous fungi, fields, hosts, insect pests, natural enemies, parasitoids, pathogens, pest control, predators, predatory arthropods, prey, rice |
| Abstract: | The natural enemies of the delphacids Nilaparvata lugens and Sogatella furcifera and the cicadellids Nephotettix virescens and N. nigropictus on rice in Andhra Pradesh, India, are discussed. The mymarid Anagrus sp. and the trichogrammatid Oligosita sp. are the most common egg parasitoids of Nilaparvata lugens, while another mymarid, Gonatocerus sp., and another trichogrammatid, Paracentrobia sp., attack eggs of Nephotettix virescens and N. nigropictus. Dryindids, pipunculids and strepsiterans parasitize the nymphs and adults of delaphacids and cicadellids. Among the predators, the mirid Cyrtorhinus lividipennis and Coccinella arcuata [Harmonia octomaculata] prey on Nilaparvata lugens, while all 4 pest species are attacked by the veliid Microvelia sp. and by several species of Araneae. The main pathogens infecting these pests include Beauveria bassiana, which attacks Nephotettix virescens and N. nigropictus during September-November, and Entomophthora fumosa, which infects Nilaparvata lugens during September. |